1 files changed, 82 insertions, 0 deletions
diff --git a/keyboards/crkbd/keymaps/edvorakjp/oled.c b/keyboards/crkbd/keymaps/edvorakjp/oled.c
new file mode 100644
index 000000000..e4cccf3e7
--- /dev/null
+++ b/keyboards/crkbd/keymaps/edvorakjp/oled.c
@@ -0,0 +1,82 @@
+#include <string.h>
+#include "oled.h"
+
+// NOTE: Redefined to avoid to use snprintf(); It makes size of firmware big.
+const char *read_mode_icon(bool windows_mode) {
+  static const char logo[][2][3] = {{{0x95, 0x96, 0}, {0xb5, 0xb6, 0}}, {{0x97, 0x98, 0}, {0xb7, 0xb8, 0}}};
+  static char mode_icon[10];
+
+  int mode_number = windows_mode ? 1 : 0;
+  strcpy(mode_icon, logo[mode_number][0]);
+
+  strcat(mode_icon, "\n");
+  strcat(mode_icon, logo[mode_number][1]);
+
+  return mode_icon;
+}
+
+const char *read_layer_state(void) {
+  static char layer_state_str[24];
+  char layer_name[17];
+
+  switch (biton32(layer_state)) {
+    case L_BASE:
+      strcpy(layer_name, default_layer_state == 1UL<<_EDVORAK ? "EDVORAK" : "QWERTY");
+      break;
+    case _EDVORAKJ1:
+    case _EDVORAKJ2:
+      strcpy(layer_name, "JP_EXT");
+      break;
+    case _RAISE:
+      strcpy(layer_name, "Raise");
+      break;
+    case _LOWER:
+      strcpy(layer_name, "Lower");
+      break;
+    case _ADJUST:
+      strcpy(layer_name, "Adjust");
+      break;
+    default:
+      snprintf(layer_name, sizeof(layer_name), "Undef-%ld", layer_state);
+  }
+
+  strcpy(layer_state_str, "Layer: ");
+
+  strcat(layer_state_str, layer_name);
+  strcat(layer_state_str, "\n");
+  return layer_state_str;
+}
+
+const char *read_host_led_state(void) {
+  static char led_str[24];
+  bool ext_status = get_enable_jp_extra_layer() && get_japanese_mode();
+  strcpy(led_str, ext_status ? "EXT" : "   ");
+
+  strcat(led_str, (host_keyboard_leds() & (1<<USB_LED_NUM_LOCK)) ? " NMLK" : "     ");
+  strcat(led_str, (host_keyboard_leds() & (1<<USB_LED_CAPS_LOCK)) ? " CAPS" : "    ");
+  strcat(led_str, (host_keyboard_leds() & (1<<USB_LED_SCROLL_LOCK)) ? " SCLK" : "     ");
+  return led_str;
+}
+
+void matrix_update(struct CharacterMatrix *dest,
+                   const struct CharacterMatrix *source) {
+  if (memcmp(dest->display, source->display, sizeof(dest->display))) {
+    memcpy(dest->display, source->display, sizeof(dest->display));
+    dest->dirty = true;
+  }
+}
+
+void iota_gfx_task_user(void) {
+  struct CharacterMatrix matrix;
+
+  matrix_clear(&matrix);
+  if (is_master) {
+    matrix_write(&matrix, read_mode_icon(!get_enable_kc_lang()));
+    matrix_write(&matrix, " ");
+    matrix_write(&matrix, read_layer_state());
+    matrix_write(&matrix, read_host_led_state());
+  } else {
+    matrix_write(&matrix, read_logo());
+  }
+  matrix_update(&display, &matrix);
+}